81712560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 268697088

約数和(自身を除く): 186984528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 113, 115, 120, 131, 138, 184, 226, 230, 240, 262, 276, 339, 345, 368, 393, 452, 460, 524, 552, 565, 655, 678, 690, 786, 904, 920, 1048, 1104, 1130, 1310, 1356, 1380, 1572, 1695, 1808, 1840, 1965, 2096, 2260, 2599, 2620, 2712, 2760, 3013, 3144, 3390, 3930, 4520, 5198, 5240, 5424, 5520, 6026, 6288, 6780, 7797, 7860, 9039, 9040, 10396, 10480, 12052, 12995, 13560, 14803, 15065, 15594, 15720, 18078, 20792, 24104, 25990, 27120, 29606, 30130, 31188, 31440, 36156, 38985, 41584, 44409, 45195, 48208, 51980, 59212, 60260, 62376, 72312, 74015, 77970, 88818, 90390, 103960, 118424, 120520, 124752, 144624, 148030, 155940, 177636, 180780, 207920, 222045, 236848, 241040, 296060, 311880, 340469, 355272, 361560, 444090, 592120, 623760, 680938, 710544, 723120, 888180, 1021407, 1184240, 1361876, 1702345, 1776360, 2042814, 2723752, 3404690, 3552720, 4085628, 5107035, 5447504, 6809380, 8171256, 10214070, 13618760, 16342512, 20428140, 27237520, 40856280, 81712560]

約数ペア:

[(1, 81712560), (2, 40856280), (3, 27237520), (4, 20428140), (5, 16342512), (6, 13618760), (8, 10214070), (10, 8171256), (12, 6809380), (15, 5447504), (16, 5107035), (20, 4085628), (23, 3552720), (24, 3404690), (30, 2723752), (40, 2042814), (46, 1776360), (48, 1702345), (60, 1361876), (69, 1184240), (80, 1021407), (92, 888180), (113, 723120), (115, 710544), (120, 680938), (131, 623760), (138, 592120), (184, 444090), (226, 361560), (230, 355272), (240, 340469), (262, 311880), (276, 296060), (339, 241040), (345, 236848), (368, 222045), (393, 207920), (452, 180780), (460, 177636), (524, 155940), (552, 148030), (565, 144624), (655, 124752), (678, 120520), (690, 118424), (786, 103960), (904, 90390), (920, 88818), (1048, 77970), (1104, 74015), (1130, 72312), (1310, 62376), (1356, 60260), (1380, 59212), (1572, 51980), (1695, 48208), (1808, 45195), (1840, 44409), (1965, 41584), (2096, 38985), (2260, 36156), (2599, 31440), (2620, 31188), (2712, 30130), (2760, 29606), (3013, 27120), (3144, 25990), (3390, 24104), (3930, 20792), (4520, 18078), (5198, 15720), (5240, 15594), (5424, 15065), (5520, 14803), (6026, 13560), (6288, 12995), (6780, 12052), (7797, 10480), (7860, 10396), (9039, 9040)]